Document returned results of submitblock

src/rpcmining.cpp

@@ -762,6 +762,12 @@ UniValue submitblock(const UniValue& params, bool fHelp)
             "      \"workid\" : \"id\"    (string, optional) if the server provided a workid, it MUST be included with submissions\n"
             "    }\n"
             "\nResult:\n"
+            "\"duplicate\" - node already has valid copy of block\n"
+            "\"duplicate-invalid\" - node already has block, but it is invalid\n"
+            "\"duplicate-inconclusive\" - node already has block but has not validated it\n"
+            "\"inconclusive\" - node has not validated the block, it may not be on the node's current best chain\n"
+            "\"rejected\" - block was rejected as invalid\n"
+            "For more information on submitblock parameters and results, see: https://github.com/bitcoin/bips/blob/master/bip-0022.mediawiki#block-submission\n"
             "\nExamples:\n"
             + HelpExampleCli("submitblock", "\"mydata\"")
             + HelpExampleRpc("submitblock", "\"mydata\"")